Process for making corrugated-faced cement brick



t t y-e, 1926;"

DAVID r. ,SHQPE, or PORTLAND, OREGON..

rnoonss FOR'MAK NG' CORRUGATED-FACED omvmnfrnidk.

N9 Drawing.

The invention relates to the p'rocess of d treating faced cementwaterproofing an 7 Application filedNovenilierls,1924." SerialNo,750,711. r

l V brick having corrugations upon the exposed faces of the brick whenlaid and upon other desired surfaces and consists of first forming thebrick in'suitable molds from a semi wet mixture'of cement and suitableaggregate and :thc 'tamping ofthe same within the mold. The fo rming ofa corrugated surface upon one, ormore, of the faces of the brick, by"suitable means; the wetting of the corrugated surface with "a fineatomized a spray, the sprinkling ofa cementitiousmaterial', and coloringmatter, if desired,in a dry-state, upon theiwetted, corrugated surface,and the wetting of the same by. the

application of a fine atomized spray and the increasing of the densityof the wetted surface, as by the drawing of a fine toothed steel brushthereacross parallel with the on V the surfaces being corrugationstreated.

Having thus described my process in de-f tail I wish to m th'erefor akethe following claims,

1. 'The process bi); making corrugated faced cement bri ck, consistingof forming the brick in arsuitablemol'd, as by tamping,

from cement and a suitable aggregate 111 a slightlymoisten'edf state;forming a corru- 3L gated surface thereon, wetting the corrugatedsurface by atomization, sprinkling dry cement, and coloring matter ifdesired, upon the wetted surface, again :wetting the} 7 surface byatomization, and lastly drawing 3 a fine steel brush across the same,parallel with theycorrugations, thereby increasing the density of the:surface sotreated. 2. The" process of making corrugated V faced cementbricks, consisting'of forming 4 the brick body, h

aving'corrugated surfaces, 4 I

in a suitable manner, from a suitable aggre- I gate wetting thecorrugated surfaces,

sprinkling'thereon cement and coloringmatter in a suitable thickness,atomizing the added material to saturation, and drawing: a fine steelbrush across the same parallel with the corrugations; thereby increasingthe density of th e surface so treated. I DAVID F j SHOPE.

